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Fix savevm after BDRV_FILE size enforcement

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We now enforce that you cannot write beyond the end of a non-growable file.
qcow2 files are not growable but we rely on them being growable to do
savevm/loadvm.  Temporarily allow them to be growable by introducing a new
API specifically for savevm read/write operations.

Reported-by: malc
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6994 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-04-05 19:10:55 +00:00
parent 8185d2c9a2
commit 178e08a58f
5 changed files with 64 additions and 6 deletions
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5
block_int.h
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@ -78,6 +78,11 @@ struct BlockDriver {
QEMUSnapshotInfo **psn_info);
int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi);
int (*bdrv_put_buffer)(BlockDriverState *bs, const uint8_t *buf,
int64_t pos, int size);
int (*bdrv_get_buffer)(BlockDriverState *bs, uint8_t *buf,
int64_t pos, int size);
/* removable device specific */
int (*bdrv_is_inserted)(BlockDriverState *bs);
int (*bdrv_media_changed)(BlockDriverState *bs);